NAICS 541990 · Professional, Scientific, and Technical Services
NAICS 541990: All Other Professional, Scientific, and Technical Services
This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services (except legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related services; specialized design services; computer systems design and related services; management, scientific, and technical consulting services; scientific research and development services; advertising, public relations, and related services; market research and public opinion polling; photographic services; translation and interpretation services; and veterinary services).
$19.5M receiptsSBA size standard
9open contracts now
134posted in the last 12 months
5419Other Professional, Scientific, and Technical Services
General Services Administration · Due January 11, 2027
What NAICS 541990 covers
This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services (except legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related services; specialized design services; computer systems design and related services; management, scientific, and technical consulting services; scientific research and development services; advertising, public relations, and related services; market research and public opinion polling; photographic services; translation and interpretation services; and veterinary services).
Examples of work in this code:
Appraisal (except real estate) services
Marine surveyor (i.e., appraiser) services
Arbitration and conciliation services (except by lawyer, attorney, or paralegal offices)
Pipeline or power line inspection (i.e., visual) services
Consumer credit counseling services
Weather forecasting services
Handwriting analysis services
Not in this code
Establishments primarily engaged in providing legal services are classified in Industry Group 5411, Legal Services.
Establishments primarily engaged in providing accounting, tax preparation, bookkeeping, and payroll services are classified in Industry Group 5412, Accounting, Tax Preparation, Bookkeeping, and Payroll Services.
Establishments primarily engaged in providing architectural, engineering, and related services are classified in Industry Group 5413, Architectural, Engineering, and Related Services.
Establishments primarily engaged in providing specialized design services are classified in Industry Group 5414, Specialized Design Services.
Establishments primarily engaged in providing computer systems design and related services are classified in Industry Group 5415, Computer Systems Design and Related Services.
Establishments primarily engaged in providing management, scientific, and technical consulting services are classified in Industry Group 5416, Management, Scientific, and Technical Consulting Services.
Establishments primarily engaged in providing scientific research and development services are classified in Industry Group 5417, Scientific Research and Development Services.
Establishments primarily engaged in providing advertising and related services are classified in Industry Group 5418, Advertising, Public Relations, and Related Services.
Establishments primarily engaged in providing marketing research and public opinion polling are classified in Industry 541910, Marketing Research and Public Opinion Polling.
Establishments primarily engaged in providing photographic services are classified in Industry 54192, Photographic Services.
Establishments primarily engaged in providing translation and interpretation services are classified in Industry 541930, Translation and Interpretation Services.
Establishments primarily engaged in providing veterinary services are classified in Industry 541940, Veterinary Services.
Establishments primarily engaged in providing real estate appraisal services are classified in Industry 531320, Offices of Real Estate Appraisers.
SBA size standard
A business is small under NAICS 541990 if it has no more than $19.5 million in average annual receipts (averaged over the last five completed fiscal years, including affiliates).
Source: SBA Table of Size Standards, effective 2023-03-17. Always check the size standard printed in the solicitation itself.
Who buys it
Departments that posted the most NAICS 541990 solicitations in the last two years:
Department of Defense · 64 solicitations
General Services Administration · 33 solicitations
Event Data Recorders · State, Department of · Washington, D.C. · posted September 28, 2026
Cultural Relations Specialist (CRS) - CJTF HOA · Department of Defense · posted September 25, 2026
711th HPW Mission Support Services MAC IDIQ · Department of Defense · Ohio · posted September 24, 2026
H--grte fire suppression/panel inspections · Interior · Wyoming · posted September 22, 2026
Combined Synopsis/Solicitation for Commercial Items Agile Professional Services ("APS”) Department of the Army · Department of Defense · Florida · posted September 21, 2026
Teledyne Griffin G510X Service Agreement · Health and Human Services · Illinois · posted September 21, 2026
Compilation of Ocean-Going Self-Propelled Deep-Draft Vessel Operating Costs (DDVOCs) · Department of Defense · posted September 17, 2026
B--Whole Genome Sequencing · Commerce · posted September 17, 2026
Do this kind of work?
Send XL Eagle your price on an open all other professional, scientific, and technical services job. We write and submit the bid under our registrations. If we win, you do the work at your price. No fees.
NAICS 541990 is All Other Professional, Scientific, and Technical Services. This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services (except legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related services; specialized design services; computer systems design and related services; management, scientific, and technical consulting services; scientific research and development services; advertising, public relations, and related services; market research and public opinion polling; photographic services; translation and interpretation services; and veterinary services).
What is the SBA size standard for NAICS 541990?
The size standard for NAICS 541990 is $19.5 million in average annual receipts. Firms at or under it count as small businesses for contracts assigned this code.
Are there government contracts for all other professional, scientific, and technical services?
Yes. 9 government contracts are open under NAICS 541990 right now, and 134 were posted in the last 12 months.
Can I bid on NAICS 541990 contracts without registering in SAM.gov?
You need an active SAM.gov registration to win a federal contract in your own name. If you would rather skip that, XL Eagle can bid as the prime contractor using your price, and you do the work as our subcontractor.
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